would HIGHLY suggest using pitch.com
Great templates. Easy to use and exports to PPT and PDF. Shareable links and an extremely generous free version. You want your pitch deck to look good (the only people who can get away with an ugly deck are those with a lot of momentum/connections). The average founder needs a deck that looks good and PPT/Google Slides probably won’t get you there
About $1k. Happy to help with this if you need. 5 years in consulting and a pre-seed raise has given me a great eye for pitch deck design